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The Effect of Arbutin on the Expression of Tumor Suppressor P53, Bax/Bcl-2 Ratio and Oxidative Stress Induced by Tert-Butyl Hydroperoxide in Fibroblast and Lncap Cell Lines Publisher



Ebadollahi S1, 2 ; Zabihi E3 ; Golpour M4 ; Aghajanpourmir M5, 6
Authors
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Authors Affiliations
  1. 1. Department of Clinical Biochemistry, Faculty of Medicine, Babol University of Medical Sciences, P.O.Box: 4136747176, Babol, Iran
  2. 2. Student Research Committee, Babol University of Medical Sciences, Babol, Iran
  3. 3. Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
  4. 4. Cellular and Molecular Biology Research Center, Student Research Committee, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
  5. 5. Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Genetics, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran

Source: Cell Journal Published:2021


Abstract

Objective: Arbutin (p-hydroxyphenyl-β-D-glucopyranoside) possesses beneficial functions including antioxidant, antiinflammatory, and anti-tumoral activities. Due to the important role of oxidative stress and apoptosis in the successful treatment of cancer, understanding mechanisms that lead to apoptosis in cancer cells, is essential. The purpose of the current study was to evaluate the effect of arbutin on tert-butyl hydroperoxide (t-BHP)-induced oxidative stress and the related mechanisms in fibroblast and Lymph Node Carcinoma of the Prostate (LNCaP) cells. Materials and Methods: In this experimental study, the LNCaP and fibroblast cell lines were pre-treated with arbutin (50, 250 and 1000 μM). After 24 hours, t-BHP (30 and 35 iM) was added to the cells. Viability was measured (at 24 and 48 hours) using MTT assay. The antioxidant effect of arbutin was measured by FRAP assay. The mRNA expression of P53 and BAX/BCL-2 ratio were measured using quantitative polymerase chain reaction (PCR). The percentage of apoptotic or necrotic cells was determined using a double staining annexin V fluorescein isothiocyanate (FITC) apoptosis detection kit. Results: Arbutin pre-treatment increased the total antioxidative power and cell viability in the MTT assay and reduced BAX/BCL-2 ratio, P53 mRNA expression and necrosis in fibroblasts exposed to the oxidative agent (P<0.001). In addition, our results showed that arbutin can decrease cell viability, induce apoptosis and increase BAX/BCL-2 ratio in LNCaP cells at some specific concentrations (P<0.001). Conclusion: Arbutin as a potential functional β-D-glucopyranoside has strong ability to selectively protect fibroblasts against t-BHP-induced cell damage and induce apoptosis in LNCaP cells. © 2021 Royan Institute (ACECR). All rights reserved.
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